Senior Platform Engineer
LondonFull-timePosted 2mo ago
About the role
Senior Platform Engineer at 9fin focused on enabling a DevOps culture, delivering a world-class developer experience, and building scalable infrastructure with a strong emphasis on automation, security, observability, and CI/CD.
Responsibilities
- Designing and implementing high quality infrastructure as code templates/modules, and empowering software engineers to use them for their projects.
- Implementing AWS multi-account core infrastructure, and ensuring security best practices across the cloud estate.
- Authoring CI/CD templates and optimisations to ensure that engineers can release as early and often as possible.
- Designing and implementing a developer portal, to provide a service catalog to the engineering team, and also author many other useful DevOps plugins.
- Contributing to observability best practices and providing key SLI/SLO metric reporting, so that the engineering team can balance velocity and reliability.
- Develop inner/open source projects to help provide a world-class developer experience to the engineering team.
Qualifications
- Good working knowledge of AWS services including ECS, EC2, Lambda, VPC, IAM, Route53, CloudFront, S3, RDS
- Good understanding of monitoring and logging solutions. Experience with OpenTelemetry, AWS Cloudwatch and SigNoz is a bonus
- Basic SRE knowledge, and experience in alerting and incident management platforms (e.g. incident.io, Pagerduty)
- Proven ability to provide and support strong and scalable CI/CD pipelines
- Linux, Git, Docker and scripting skills in Python, bash, Go; proficient in at least one modern programming language
- Experience defining Infrastructure as Code using Terraform
- Knowledgeable and comfortable with Agile development practices
- Strong learning mindset and passion for developer experience and Platform Engineering
- Previous fintech experience is a bonus
Skills
Required:AWSInfrastructure as CodeCI/CDDeveloper ExperienceObservability
Benefits
- Competitive Salary (salary bands benchmarked at the top end of the market)
- Equity
- Pension (minimum 4% employer contributions with 9fin matching up to 7%)
- Private Medical Insurance
- Paid sick leave with Income Protection for long periods of illness
- Group Life Assurance
- Season Ticket Loan & Cycle to Work schemes
- 25 holiday days per year
- Local public holidays (with the ability to exchange them for alternative days)
- Work abroad for up to 3 months a year
- 1 month paid sabbatical after 5 years of service
- Enhanced parental leave & flexible working arrangements available
- Professional learning and development budget
- Quarterly team socials
- Summer and Winter company social events
Last updated Oct 21, 2026. Interested? Apply on the company site.

About 9fin
Faster, smarter, debt market intelligence
9fin is a leading provider of debt market intelligence and offers everything you need to analyse a credit, or win a mandate in one AI-powered platform
Debt Market IntelligenceDataAnalyticsCredit AnalysisFinancial Data
More open roles at 9fin
- Strategic Account Manager4d agoNew York · Sales
- Account Executive4d agoNew York · Sales
- People Operations Lead1w agoBelfast · People
- Senior Product Manager1w agoLondon · Product Management
- People Operations Lead1w agoLondon · People